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Daily Mail
14 hours ago
- Science
- Daily Mail
Super Natural by Alex Riley: Boil it, drown it, nuke it - but you can't kill it
Super Natural: how life thrives in impossible places by Alex Riley (Atlantic Books £22, 368pp) A tiny animal called a tardigrade was first identified in 1861, and described as 'a little puppy-shaped animal very busy pawing about . . . a very comical amusing fellow'. They've also been called 'water bears' and 'moss piglets'. What's truly staggering, says Alex Riley in this brilliant new book, is 'that such a squishy and microscopically cuddly animal would turn out to be so extraordinarily tough'. They can live at 6,000 metres above sea level, survive in boiling water for half an hour. They can endure pressures of 1,000 atmospheres and radiation 1,000 times the lethal dose for humans. Oh, and they're fine about being fired into space, and surviving space vacuum and solar and galactic radiation with aplomb. Their secret appears to be an ability to dehydrate, yet remain alive. In this state they don't even age. Tardigrades are a key reason scientists think that total sterilisation of the Earth would be impossible. 'Once life begins on a planet,' said a team from Oxford and Harvard, 'it is likely to endure.' There are fish that live at 2c below freezing, fungi that flourish inside the Chernobyl reactor, and turtles that don't need to take a breath for six months. Riley is good at sketching the geeks at the forefront of the research. One, supposedly an expert on mammalian hibernation, now cheerfully admits, after years of close study, that 'they've confused the living crap out of me'. It's as if the more we learn about nature, the more we don't understand. Surviving on very little oxygen, bar-headed geese migrate over the Himalayas, flying at an impossible 8,000 metres, thanks to some brilliant adaptations in their blood cells and lungs. There's the possibility that the geese have been flying this route for over 50 million years, since before the Himalayas were there. Another lesson from nature is that destruction is also creation. Two billion years ago, photosynthetic bacteria nearly exterminated life on Earth when they began to belch out oxygen, a gas hitherto very rare in our atmosphere. Yet after a huge die-off, new life forms emerged to exploit this resource. Some 440 million years ago, trees quickly colonised the ancient supercontinent of Pangaea, and sucked up mega-tonnes of CO2 in the process, thus abruptly 'turning a greenhouse world into an ice world'. Some 85 per cent of all species became extinct. Today, the disaster of Chernobyl has a sobering lesson, too. Nature flourishes and multiplies here because the humans have left. Nature doesn't really mind radiation; what it can't cope with is people. James Lovelock, of the Gaia theory, suggested that the best way to protect the tropical rainforests would be to dump radioactive waste there, 'to exclude humans'. Riley takes comfort in the resilience of nature. While he's dismayed by erratic climate change and collapsing biodiversity, none of these can really threaten life on Earth, though they may well threaten us. The tardigrades will keep going, evolving into new and unimaginable forms of life.
Yahoo
04-06-2025
- Health
- Yahoo
Super Natural by Alex Riley review – the creatures that can survive anywhere
Atop the gloop that swirls on subterranean pools in Romania's Movile cave, a host of mostly translucent, unseeing creatures scrabbles around. These singular beasties – centipedes, spiders, scorpions, leeches, snails and woodlice – derive their daily nutrients from slimy mats of sulphur-loving bacteria that thrive in the oxygen-poor atmosphere. This unique ecosystem was isolated for more than 5m years until 1986, when drilling for a potential power plant pierced the cave's walls. As the science writer Alex Riley reports in Super Natural, 37 out of the 52 invertebrate species living in the 240-metre-long space – which sits 21 metres below the surface near the Black Sea coast – exist nowhere else on Earth. While our ancestors were evolving in the intervening aeons – learning how to use fire, circling the globe, discovering petroleum and then polluting the atmosphere with greenhouse gases – 'the animals in Movile cave slurped up their microbial crop' oblivious to the world outside. They represent just a few of the exotic species that populate Riley's fascinating portrait of how life survives despite radiation, desiccation, the heat of the Sahara, freezing polar temperatures, total darkness, extended famine, lack of oxygen and the oceans' abyssal depths. Among them are the hardy tardigrades, cute little invertebrate 'moss piglets' half a millimetre long that can withstand 'unimaginable extremes', including 'freezing to near absolute zero, boiling heat, pulverising radiation, the vacuum of space' (they've been taken into orbit several times). But there are also more familiar creatures, including mammals and birds. Within the Chornobyl exclusion zone, wild Przewalski's horses – a once near-extinct species – thrive and reproduce despite the lingering radiation. In North America, the common poorwill (or hölchoko, 'the sleeping one' in Hopi) is the only bird known to hibernate, lowering its body temperature to 5C (41F) and remaining in this torpid state for weeks. The deep ocean was once regarded as hostile to any form of life, with 19th-century biologists such as Louis Agassiz deeming it 'quite impassable for marine animals'. There was no sustenance for them , he wrote, 'and it is doubtful if animals could sustain the pressure of so great a column of water'. That turned out to be wrong, and in 2022 scientists were able to film the Pseudoliparis snailfish at 8,336 metres below sea level off the coast of Japan – a depth roughly equivalent to the height of Everest. It doesn't stop there. 'Sea stars, isopods, sea cucumbers, glass sponges: all have representatives that filter water or sediment to feed in waters over 10 kilometers down.' The most common are scavenging crustaceans that feed on the dead organisms falling from above – one of which, the supergiant amphipod Alicella gigantea, looks like a flea and can grow to the size of a rat. Sadly, their diet has begun to change. Dissecting an amphipod collected in the Mariana Trench in the western Pacific, ecologist Johanna Weston 'found a blue microscopic fibre inside its stomach. Just over half a millimetre long and shaped like an archer's bow, it was a sliver of polyethylene terephthalate.' That's the plastic used in water bottles, and Weston named the species Eurythenes plasticus. Related: More than 5,000 new species discovered in Pacific deep-sea mining hotspot This all sounds depressing, but the book isn't, and Riley writes with levity and self-deprecating humour. 'Observing an animal so indifferent to my existence was comforting,' he writes as he focuses his microscope on a tardigrade he has extracted from a clump of moss. The minutes he spends observing this tiny animal with its 'eight chubby legs' open 'a tiny portal into a world beyond humanity'. It's also oddly comforting to realise that nature is highly resilient, enduring five mass extinctions before the current, sixth one. The Permian extinction, caused by volcanic activity 252m years ago, killed 96% of all life in the oceans. And yet, by clearing the seabed of rugose corals and trilobites, 'a new world of predatory cephalopods, crabs, snails, sharks, bony fish and marine reptiles could emerge', writes Riley. And, whatever happens, you can bet that near-indestructible tardigrades will continue plodding along. 'Life, once it has emerged on a planet, is very hard to destroy.' • Super Natural: How Life Thrives in Impossible Places by Alex Riley is published by Atlantic (£22). To support the Guardian order your copy at Delivery charges may apply.
The Guardian
04-06-2025
- Health
- The Guardian
Super Natural by Alex Riley review – the creatures that can survive anywhere
Atop the gloop that swirls on subterranean pools in Romania's Movile cave, a host of mostly translucent, unseeing creatures scrabbles around. These singular beasties – centipedes, spiders, scorpions, leeches, snails and woodlice – derive their daily nutrients from slimy mats of sulphur-loving bacteria that thrive in the oxygen-poor atmosphere. This unique ecosystem was isolated for more than 5m years until 1986, when drilling for a potential power plant pierced the cave's walls. As the science writer Alex Riley reports in Super Natural, 37 out of the 52 invertebrate species living in the 240-metre-long space – which sits 21 metres below the surface near the Black Sea coast – exist nowhere else on Earth. While our ancestors were evolving in the intervening aeons – learning how to use fire, circling the globe, discovering petroleum and then polluting the atmosphere with greenhouse gases – 'the animals in Movile cave slurped up their microbial crop' oblivious to the world outside. They represent just a few of the exotic species that populate Riley's fascinating portrait of how life survives despite radiation, desiccation, the heat of the Sahara, freezing polar temperatures, total darkness, extended famine, lack of oxygen and the oceans' abyssal depths. Among them are the hardy tardigrades, cute little invertebrate 'moss piglets' half a millimetre long that can withstand 'unimaginable extremes', including 'freezing to near absolute zero, boiling heat, pulverising radiation, the vacuum of space' (they've been taken into orbit several times). But there are also more familiar creatures, including mammals and birds. Within the Chornobyl exclusion zone, wild Przewalski's horses – a once near-extinct species – thrive and reproduce despite the lingering radiation. In North America, the common poorwill (or hölchoko, 'the sleeping one' in Hopi) is the only bird known to hibernate, lowering its body temperature to 5C (41F) and remaining in this torpid state for weeks. The deep ocean was once regarded as hostile to any form of life, with 19th-century biologists such as Louis Agassiz deeming it 'quite impassable for marine animals'. There was no sustenance for them , he wrote, 'and it is doubtful if animals could sustain the pressure of so great a column of water'. That turned out to be wrong, and in 2022 scientists were able to film the Pseudoliparis snailfish at 8,336 metres below sea level off the coast of Japan – a depth roughly equivalent to the height of Everest. It doesn't stop there. 'Sea stars, isopods, sea cucumbers, glass sponges: all have representatives that filter water or sediment to feed in waters over 10 kilometers down.' The most common are scavenging crustaceans that feed on the dead organisms falling from above – one of which, the supergiant amphipod Alicella gigantea, looks like a flea and can grow to the size of a rat. Sadly, their diet has begun to change. Dissecting an amphipod collected in the Mariana Trench in the western Pacific, ecologist Johanna Weston 'found a blue microscopic fibre inside its stomach. Just over half a millimetre long and shaped like an archer's bow, it was a sliver of polyethylene terephthalate.' That's the plastic used in water bottles, and Weston named the species Eurythenes plasticus. Sign up to Bookmarks Discover new books and learn more about your favourite authors with our expert reviews, interviews and news stories. Literary delights delivered direct to you after newsletter promotion This all sounds depressing, but the book isn't, and Riley writes with levity and self-deprecating humour. 'Observing an animal so indifferent to my existence was comforting,' he writes as he focuses his microscope on a tardigrade he has extracted from a clump of moss. The minutes he spends observing this tiny animal with its 'eight chubby legs' open 'a tiny portal into a world beyond humanity'. It's also oddly comforting to realise that nature is highly resilient, enduring five mass extinctions before the current, sixth one. The Permian extinction, caused by volcanic activity 252m years ago, killed 96% of all life in the oceans. And yet, by clearing the seabed of rugose corals and trilobites, 'a new world of predatory cephalopods, crabs, snails, sharks, bony fish and marine reptiles could emerge', writes Riley. And, whatever happens, you can bet that near-indestructible tardigrades will continue plodding along. 'Life, once it has emerged on a planet, is very hard to destroy.' Super Natural: How Life Thrives in Impossible Places by Alex Riley is published by Atlantic (£22). To support the Guardian order your copy at Delivery charges may apply.
